초록 |
Recently, metal organic frameworks (MOFs) have been intensively used as excellent carbon precursors to synthesize nanoporous carbon materials. Because the GO/core–shell MOF composites are efficient nonprecious metal catalysts for oxygen reduction reactions, combining core-shell MOFs with graphene oxide (GO) can derived carbon composites exhibit enhanced electrochemical performance due to the increased electrical conductivity and improve cathode structure as host. In this study, seed-mediated deposition method is used to synthesize MOF/graphene oxide (GO)/MOF nano-sandwiches with core–shell structured MOF (ZIF-8@ZIF-67). For comparison, we used same cell except cathode material which is only graphene oxide. Electrochemical properties were conducted by making coin cell and characterized by cyclic voltammetry in 1M LiTFSI electrolyte. |